Can you add the numbers 1 to 100 in your head in less than one minute? Do you have Pi memorised to more than 10 digits? Do you know what a Determinant Matrix or have you ever found yourself discussing triple integrals at a party? If your answer to one or more of these questions is yes, then our latest hosted mini-contest, Mathematical Mayhem, has been written with you in mind. Created by JStozz, this arithmetical adventure only consists of 10 puzzles, but although short in quantity, it certainly isn't lacking in originality and fun. Mathematical Mayhem will be launched at HTPO at 8pm BST (7pm GMT) on Saturday 9th October. (I'll leave it to you mathematical types to work out what time that is in your region )._________________----oOo----